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1. 发明授权

EP2530345B1 Fixed uniform-motion universal coupling 有权
标题翻译：固定匀速运动万向联轴器
公开(公告)号：EP2530345B1
公开(公告)日：2018-05-09
申请号：EP12006095.9
申请日：2008-03-21
申请人： NTN Corporation
发明人： Hoshino, Manabu , Fujio, Teruaki , Nakagawa, Tohru , Suganuma, Wasaburo
IPC分类号： F16D3/223 , F16D3/224 , F16D3/2237
CPC分类号： F16D3/2237 , F16D3/224 , F16D2003/22303 , F16D2250/00 , F16D2300/12
摘要： Provided is a fixed type constant velocity universal joint capable of, without involving decreases in load capacity of an inner joint member (inner member) and in spherical area, increasing rigidity of a cage and stabilizing durability. Pockets (29) of a cage (28) include four pockets including a pair of long pockets (30) with large circumferential intervals and a pair of short pockets (31) with small circumferential intervals. The pair of long pockets (30) can be shifted by 180 degrees along a circumferential direction, and the pair of short pockets (31) can be shifted by 180 degrees along the circumferential direction. The long pockets (30) and the short pockets (31) are arranged alternately to each other along the circumferential direction. Two balls (27) are accommodated in each of the long pockets (30), while one ball is accommodated in each of the short pockets (31). A cutout portion (45) is provided to an inner end portion of at least one of the track grooves (25) of the inner member.

2. 发明授权

EP2778452B1 FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT 有权
公开(公告)号：EP2778452B1
公开(公告)日：2018-02-28
申请号：EP12847139.8
申请日：2012-10-19
申请人： NTN Corporation
发明人： HIRUKAWA Hiroyasu , YAMAZAKI Kenta , YAMAZAKI Kisao
IPC分类号： F16D3/224 , F16D3/2237 , F16D3/223
CPC分类号： F16D3/24 , F16D3/223 , F16D3/2237 , F16D3/224 , F16D2003/22309
摘要： In a fixed type constant velocity universal joint (1), track grooves of an outer joint member include: first track groove portions (7a) positioned on an interior side; and second track groove portions (7b) positioned on an opening side. Each of the first track groove portions (7a) includes an arc-shaped ball raceway center line (Xa) having a curvature center prevented from being offset in an axial direction of the outer joint member with respect to a joint center (O). Planes (M) each including at least the ball raceway center line (Xa) and the joint center (O) are inclined with respect to a joint axial line (N-N) with their inclination directions opposite to each other in the first track groove portions (7a), which are adjacent to each other in a peripheral direction of the outer joint member. Each of the second track groove portions (7b) includes a ball raceway center line (Xb) having a straight part when being projected onto corresponding one of the planes (M). The straight part is formed in an inclined manner to approach the joint axial line (N-N) as a distance to the opening side becomes smaller. The ball raceway center line (Xa) of the each of the first track groove portions (7a) includes an end portion (A) positioned on the opening side in the axial direction with respect to the joint center (O). The ball raceway center line (Xb) of the each of the second track groove portions (7b) is connected to the end portion (A). Each of track grooves of an inner joint member includes a ball raceway center line (Y), which is formed so as to be mirror-image symmetrical with a ball raceway center line (X) of corresponding one of the paired track grooves of the outer joint member with respect to a plane (P) including the joint center (O) at an operating angle of 0°.

3. 发明公开

EP2662583A4 FIXED-TYPE CONSTANT-VELOCITY UNIVERSAL JOINT 有权
公开(公告)号：EP2662583A4
公开(公告)日：2017-10-25
申请号：EP11854987
申请日：2011-12-06
申请人： NTN TOYO BEARING CO LTD
发明人： FUJIO TERUAKI
IPC分类号： F16D3/224 , F16D3/223
CPC分类号： F16D3/24 , F16D3/224 , F16D2003/22303 , F16D2003/22309 , Y10S464/906
摘要： Provided is a fixed type constant velocity universal joint which suppresses heat generation under high load and in high speed rotation, has a higher durability, and involves less torque loss. The fixed type constant velocity universal joint includes eight or twelve torque transmitting balls (27) arranged in ball tracks formed of pairs of track grooves (22) of an outer joint member (23) and track grooves (25) of an inner joint member (26), respectively. A center of curvature (O1) of each of the track grooves (22) of the outer joint member (23) and a center of curvature (O2) of each of the track grooves (25) of the inner joint member (26) have an axial offset of zero. When eight torque transmitting balls are employed, the track grooves (22 and 25) of the outer joint member (23) and the inner joint member (26) each include inclined tracks arranged at a 90° pitch along a circumferential direction and inclined in opposite directions with respect to an axial line and other tracks which are formed between the inclined tracks and parallel to the axial line.

4. 发明公开

EP3015729A4 FIXED-TYPE CONSTANT VELOCITY UNIVERSAL JOINT 有权
标题翻译： FESTES UNIVERSELLES GLEICHLAUFGELENK
公开(公告)号：EP3015729A4
公开(公告)日：2017-02-22
申请号：EP14817418
申请日：2014-05-26
申请人： NTN TOYO BEARING CO LTD
发明人： HIRUKAWA HIROYASU , FUJIO TERUAKI
IPC分类号： F16D3/20 , F16D3/223 , F16D3/224
CPC分类号： F16D3/224 , F16D3/223 , F16D2003/22303 , F16D2003/22309 , Y10S464/906
摘要： Provided is a fixed type constant velocity universal joint (1) of a track groove crossing type, in which track grooves (7) of an outer joint member (2) are each formed into an arc shape having a curvature center at a joint center (0), the track grooves (7) being inclined in a peripheral direction of the outer joint member (2) with respect to a joint axial line (N-N) and being adjacent to each other in the peripheral direction with their inclination directions opposite to each other, and in which track grooves (9) of an inner joint member (3) are formed so as to be mirror-image symmetrical with the paired track grooves (7) of the outer joint member (2) with respect to a joint center plane (P) at an operating angle of 0°. The track grooves (7, 9) of both the joint members (2, 3) each have a length corresponding to a maximum operating angle (¸max) required for a propeller shaft, and surface treatment is performed, for example, on a defined surface of each of the track grooves (7) of the outer joint member (2) so as to reduce frictional resistance (sliding resistance) against balls (4).
摘要翻译：提供一种轨道槽交叉型的固定式等速万向接头（1），其中外接头构件（2）的轨道槽（7）各自形成为在接合中心具有曲率中心的弧形（ 0），轨道槽（7）相对于接合轴线（NN）沿着外侧接头构件（2）的周向倾斜，并且在周向上彼此相邻，其倾斜方向与每个其中，内接头构件（3）的轨道槽（9）形成为与外接头构件（2）的成对的轨道槽（7）相对于接头中心成镜像对称平面（P），工作角度为0°。两个接头构件（2,3）的轨道槽（7,9）各自具有对应于传动轴所需的最大操作角（¸max）的长度，并且例如在限定的外接头构件（2）的每个轨道槽（7）的表面，以减小对球（4）的摩擦阻力（滑动阻力）。

5. 发明授权

EP2003355B1 FIXED UNIFORM MOTION UNIVERSAL JOINT 有权
标题翻译：固定，均匀地TRANSLATED万向节
公开(公告)号：EP2003355B1
公开(公告)日：2015-12-02
申请号：EP07739486.4
申请日：2007-03-23
申请人： NTN Corporation
发明人： OOBA, Hirokazu , SONE, Keisuke
IPC分类号： F16D3/224
CPC分类号： F16D3/224 , F16D2003/22303 , F16D2300/12 , Y10S464/906

6. 发明公开

EP2530345A1 Fixed uniform-motion universal coupling 有权
标题翻译： Feststehende Universalkupplung mitgleichförmigerBewegung
公开(公告)号：EP2530345A1
公开(公告)日：2012-12-05
申请号：EP12006095.9
申请日：2008-03-21
申请人： NTN Corporation
发明人： Hoshino, Manabu , Fujio, Teruaki , Nakagawa, Tohru , Suganuma, Wasaburo
IPC分类号： F16D3/223 , F16D3/224 , F16D3/2237
CPC分类号： F16D3/2237 , F16D3/224 , F16D2003/22303 , F16D2250/00 , F16D2300/12
摘要： Provided is a fixed type constant velocity universal joint with six balls wherein a ratio of the pitch circle diameter of the balls and a diameter of the balls is between 3.0 and 3.3
摘要翻译：提供了一种具有六个球的固定式等速万向接头，其中滚珠的节圆直径和滚珠的直径之比在3.0和3.3之间

7. 发明公开

EP2487379A1 FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT 失效
标题翻译：大学GLEICHLAUFFESTGELENK
公开(公告)号：EP2487379A1
公开(公告)日：2012-08-15
申请号：EP10821939.5
申请日：2010-10-01
申请人： NTN Corporation
发明人： FUJIO Teruaki , SUGIYAMA Tatsuro
IPC分类号： F16D3/224 , F16D3/20
CPC分类号： F16D3/223 , F16D3/224 , F16D3/2245 , F16D2003/22303 , F16D2003/22309 , Y10S464/906
摘要： Provided is a fixed type constant velocity universal joint, which is capable of preventing heat generation when high load is applied or during high-speed rotation to improve durability, and further, suppressing a contact resistance between a cage and inner and outer races to improve constant velocity performance. A curvature center of a track groove (22) of an outer joint member and a curvature center of a track groove (25) of an inner joint member have an offset of 0 in an axial direction. Track grooves (22a, 22b, 25a, 25b) of the outer joint member and the inner joint member, which are tilted in opposite directions from each other with respect to an axis line, are alternately formed in a circumferential direction. An outer surface (24) of the inner joint member is a spherical surface which is to be brought into sliding contact with an inner spherical surface (28b) of the cage (28). An inner surface (21) of the outer joint member is a cylindrical surface.
摘要翻译：本发明提供一种固定式等速万向接头，其能够防止在高负荷时或高速旋转时的发热，提高耐久性，进一步抑制保持架与内外圈之间的接触电阻以提高常数速度性能。外侧接头构件的轨道槽（22）的曲率中心和内侧接头构件的轨道槽（25）的曲率中心的轴向偏移为0。沿着圆周方向交替地形成相对于轴线在相反方向倾斜的外侧接头构件和内侧接头构件的轨道槽（22a，22b，25a，25b）。内关节构件的外表面（24）是与保持架（28）的内球面（28b）滑动接触的球面。外接头构件的内表面（21）是圆柱面。

8. 发明公开

EP2154389A4 FIXED CONSTANT VELOCITY UNIVERSAL JOINT AND METHOD OF PRODUCING OUTER RING OF THE JOINT 有权
标题翻译： SOLID跟踪关节和制造方法关节的外圈
公开(公告)号：EP2154389A4
公开(公告)日：2012-04-25
申请号：EP08776984
申请日：2008-05-29
申请人： NTN TOYO BEARING CO LTD
发明人： KOBAYASHI TOMOSHIGE
IPC分类号： F16D3/20 , F16D3/223 , F16D3/2237 , F16D3/224
CPC分类号： F16D3/2237 , F16D3/224 , F16D2250/00 , F16D2300/10 , Y10S72/714 , Y10S464/906

9. 发明公开

EP2226405A4 MACHINE COMPONENT AND ROLLING BEARING 失效
标题翻译：机械部分和轴承
公开(公告)号：EP2226405A4
公开(公告)日：2012-01-18
申请号：EP08855002
申请日：2008-11-21
申请人： NTN TOYO BEARING CO LTD
发明人： OHKI CHIKARA , YAGITA KAZUHIRO , ITO TAKASHI , MORISHITA HIROSHI
IPC分类号： C22C38/00 , C21D1/06 , C21D1/78 , C21D9/40 , C22C38/46 , C23C8/38 , F16C33/32 , F16C33/34 , F16C33/62 , F16D3/20 , F16D3/224
CPC分类号： F16C33/32 , C21D1/06 , C21D1/09 , C21D1/78 , C21D6/04 , C21D9/36 , C21D9/40 , C21D2211/004 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C23C8/26 , C23C8/38 , F16C33/34 , F16C33/62 , F16C2204/64 , F16D3/224 , F16D2250/00 , F16D2300/10 , Y02T50/67 , Y10T74/1836

10. 发明公开

EP2397567A2 Machine component and rolling bearing 有权
标题翻译： Maschinenbauteil undWälzlager
公开(公告)号：EP2397567A2
公开(公告)日：2011-12-21
申请号：EP11180165.0
申请日：2008-11-21
申请人： NTN Corporation
发明人： Ohki, Chikara , Yagita, Kazuhiro , Ito, Takashi , Morishita, Hiroshi
IPC分类号： C21D1/06 , C21D1/09 , C21D1/26 , C21D6/04 , C21D9/36 , C21D9/40 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C23C8/26 , C23C8/38 , F16C33/32 , F16C33/34 , F16C33/62 , F16D3/224
CPC分类号： F16C33/32 , C21D1/06 , C21D1/09 , C21D1/78 , C21D6/04 , C21D9/36 , C21D9/40 , C21D2211/004 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C23C8/26 , C23C8/38 , F16C33/34 , F16C33/62 , F16C2204/64 , F16D3/224 , F16D2250/00 , F16D2300/10 , Y02T50/67 , Y10T74/1836
摘要： An outer ring (11), an inner ring (12) and a ball (13) serving as mechanical components configuring a deep groove ball bearing (1) are formed of steel containing at least 0.77 mass % and not more than 0.85 mass % of carbon, at least 0.01 mass % and not more than 0.25 mass % of silicon, at least 0.01 mass % and not more than 0.35 mass % of manganese, at least 0.01 mass % and not more than 0.15 mass % of nickel, at least 3.75 mass % and not more than 4.25 mass % of chromium, at least 4 mass % and not more than 4.5 mass % of molybdenum and at least 0.9 mass % and not more than 1.1 mass % of vanadium with a remainder consisting of iron and impurity, and have raceway/rolling contact surfaces (11A, 12A, 13 A), the surface being included in a region having a nitrogen enriched layer (11B, 12B, 13B) having a nitrogen concentration of at least 0.05 mass %, the nitrogen enriched layer (11B, 12B, 13B) having a carbon concentration and the nitrogen concentration, in total, of at least 0.82 mass % and not more than 1.9 mass %.
摘要翻译：作为构成深沟球轴承（1）的机械部件的外圈（11），内圈（12）和球（13）由钢包含至少0.77质量％且不大于0.85质量％的碳，至少0.01质量％且不大于0.25质量％的硅，至少0.01质量％且不超过0.35质量％的锰，至少0.01质量％且不超过0.15质量％的镍，至少3.75 质量％且不超过4.25质量％的铬，至少4质量％且不大于4.5质量％的钼和至少0.9质量％且不超过1.1质量％的余量由铁和杂质构成的钒，并具有轨道/滚动接触面（11A，12A，13A），所述表面包括在具有至少0.05质量％的氮浓度的富氮层（11B，12B，13B）的区域中，所述富氮层（11B，12B，13B）总计为0.82质量％的碳浓度和氮浓度 nd不大于1.9质量％。

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